Don't do it!!! The Invader is definitely better than the SE man, I've owned and played both! The high gain stuff sounds almost identical on both amps but the SE has more of a semi-plastic feel to it, almost like what noodles was saying. It reminds me of a slightly less SS-feeling Powerball in way.
I wouldn't do it personally, I think the Invader has more organic sounding mids on channel two and still has the uber crazy death metal high gain of the SE.